Typical Formulation Ingredients
Phase
Ingredient
Parts by weight
A
Acrylic latex, pH of 9.8, NaOH 20%
A
Plasticizer (Plastilit 3060, BASF)
A
Pigment paste (1 part Plastilit 2056, 1 part TiO2), BASF)
A
Emulsifier (Lumiten N-OG, BASF)
A
Dispersing agent (Pigment Disperser N, BASF)
A
Filler (calcium carbide)
A
Thixotropic agent (Silicic acid HDK H 20, Wacker Chemie AG)
Typical Properties
Glass transition temperature, °C
Resulting Properties
A broad product line with a wide range of properties can be developed by only varying the pigment-to-binder ratio. A typical formulation for standard acrylic latex sealants is given above. It provides a high solids, rapid drying, paintable, and low cost formulation for gap filling applications.
The source of Elastic, Low Temperature Waterborne Acrylic Sealant Formulation is Urban, D., et. al., “Applications in the Adhesives and Construction Industries”, Chapter 8 in Polymer Dispersions and Their Industrial Applications, Wiley-VCH Verlag, 2002.).